homework array

1.

import java.util.*;
public class hw {
     public static void main(String args[]){ 
          int x[];
          x=new int[10];
          {   int i=0;
              while(i<10){
               System.out.print("Input number :");
               x[i]=new Scanner(System.in).nextInt();
               i++;} 
          }
              System.out.print("2.First number - Last number:");
              for(int i=0;i<10;i++){
              System.out.print(" "+x[i]);
              }  System.out.println();
              System.out.print("3.Last number - First number:");
              for(int i=9;i>=0;i--){
              System.out.print(" "+x[i]);
              }  System.out.println();
              System.out.print("4.Minimum number:");
      Arrays.sort(x);
      System.out.print(" "+x[0]); 
      System.out.println();
      System.out.print("5.Maximum number:");
      System.out.print(" "+x[9]); 
      System.out.println();
      System.out.print("6.Average:");
      System.out.print(" "+(x[0]+x[1]+x[2]+x[3]+x[4]+x[5]+x[6]+x[7]+x[8]+x[9])/10.0);    
     }
} 

2

import java.util.*;
import java.util.Scanner;
public class hw2 {
 public static void main(String args[]){
        Scanner in1 = new Scanner(System.in) ;
        System.out.print("Input Array Number :");
        int i = in1.nextInt() ;
        int x[];int n=i;
           double average=0.0;
           x=new int[i];
         { i=0;
             while(i<n){
                   System.out.print("Input Number :");
                   x[i]=new Scanner(System.in).nextInt();
                   i++;}
             }
                   System.out.print("2.First number - Last number:");
                       for(i=0;i<n;i++){
                       System.out.print(" "+x[i]);
                    }
                        System.out.println();
                     System.out.print("3.Last number - First number:");
                         for(i=n-1;i>=0;i--){
                          System.out.print(" "+x[i]);
                    }
             System.out.println();
             System.out.print("4.Minimum number:");
             Arrays.sort(x);
             System.out.print(" "+x[0]);     
             System.out.println();
             System.out.print("5.Maximum number:");
             System.out.print(" "+x[n-1]); 
             System.out.println();
             System.out.print("6.average:");
                     for(i=0;i<n;i++){
                          average=average+x[i];
                      }              
                          System.out.print(average/n);

    }
}

3

import java.util.Scanner;
import java.util.*;
public class hw3 {
   public static void main(String args[]){ 
          int a[],b[],c[];
          a=new int[10];
          b=new int[10];
          c=new int[10];
        System.out.println("1.Input First Number");
           {int i=0;
               while(i<10){
                      System.out.print(" ("+(i+1)+"):");
                      [i]=new Scanner(System.in).nextInt();
                      i++;
                   }
            }
                    System.out.println("2.Input Second Number");
             {int i=0;
                  while(i<10){
                        System.out.print(" ("+(i+1)+"):");
                        b[i]=new Scanner(System.in).nextInt();
                        i++;
                   }
            }
                     System.out.println("3.Show Output");
                          for(int i=0;i<10;i++){
                             c[i]=a[i]+b[i];
                             System.out.println(a[i]+" + "+b[i]+" = "+c[i]);
                            }
   }
}